Information disclosure in the Framework component in DevTools. This vulnerability was fixed in Firefox 153 and Firefox ESR 140.13.
https://www.mozilla.org/security/advisories/mfsa2026-70/
https://www.mozilla.org/security/advisories/mfsa2026-68/
https://bugzilla.mozilla.org/show_bug.cgi?id=2027519
Source: Mitre, NVD
Published: 2026-07-21
Updated: 2026-07-21
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Severity: High